JSJP_Student/jiaPei/Utils/Util/PublicMethod/RQSwitch/RQSwitch.m

//
//  RQSwitch.m
//  jiaPei
//
//  Created by 张嵘 on 2022/4/27.
//  Copyright © 2022 JCZ. All rights reserved.
//

#import "RQSwitch.h"
#import <QuartzCore/QuartzCore.h>

@interface RQSwitch()

@end

@implementation RQSwitch {
    float thumbOnPosition;
    float thumbOffPosition;
    float bounceOffset;
    CAShapeLayer *rippleLayer;
}

- (id)init {
  self = [self initWithSize:RQSwitchSizeNormal
                      style:RQSwitchStyleDefault
                      state:RQSwitchStateOn];
  
  return self;
}

- (id)initWithSize:(RQSwitchSize)size state:(RQSwitchState)state {
    @weakify(self)
    self.isEnabled = YES;
    self.isRippleEnabled = YES;
    self.isBounceEnabled = YES;
    bounceOffset = 3.0f;
    
    CGRect frame;
    CGRect trackFrame = CGRectZero;
    CGRect thumbFrame = CGRectZero;
    
    switch (size) {
        case RQSwitchSizeBig:
            frame = CGRectMake(0, 0, 50, 40);
            self.trackSize = CGSizeMake(frame.size.width, 23.0);
            self.thumbSize =  CGSizeMake(frame.size.width / 2.f, 31.0);
            break;
            
        case RQSwitchSizeNormal:
            frame = CGRectMake(0, 0, 105, 25);
            self.trackSize = CGSizeMake(frame.size.width, 25.0);
            self.thumbSize =  CGSizeMake(frame.size.width / 2.f, 25.0);
            break;
            
        case RQSwitchSizeSmall:
            frame = CGRectMake(0, 0, 30, 25);
            self.trackSize = CGSizeMake(frame.size.width, 13.0);
            self.thumbSize =  CGSizeMake(frame.size.width / 2.f, 18.0);
            break;
        case RQSwitchSizeSubject:
            frame = CGRectMake(0, 0, RQ_FIT_HORIZONTAL(105.f), RQ_FIT_HORIZONTAL(25.f));
            self.trackSize = CGSizeMake(frame.size.width, frame.size.height);
            self.thumbSize =  CGSizeMake(frame.size.width / 2.f, frame.size.height);
            break;
            
        default:
            frame = CGRectMake(0, 0, 40, 30);
            self.trackSize = CGSizeMake(frame.size.width, 13.0);
            self.thumbSize =  CGSizeMake(frame.size.width / 2.f, 20.0);
            break;
    }

    
    trackFrame.size = self.trackSize;
    trackFrame.origin.x = 0.0;
    trackFrame.origin.y = (frame.size.height - trackFrame.size.height) / 2;
    thumbFrame.size = self.thumbSize;
    thumbFrame.origin.x = 0.0;
    thumbFrame.origin.y = (frame.size.height - thumbFrame.size.height) / 2;
    
    // Actual initialization with selected size
    self = [super initWithFrame:frame];
    
    self.track = [[UIView alloc] initWithFrame:trackFrame];
    self.track.backgroundColor = [UIColor grayColor];
    [self.track addSubview:self.trackLeftLabel];
    self.track.layer.borderWidth = 1.0f;
    self.track.layer.borderColor = RQColorFromHexString(@"#B8C0CC").CGColor;
    
    [self.trackLeftLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        @strongify(self)
        make.left.mas_equalTo(self.track);
        make.centerY.mas_equalTo(self.track);
        make.size.mas_equalTo(self.thumbSize);
    }];
    
    [self.track addSubview:self.trackRightLabel];
    [self.trackRightLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        @strongify(self)
        make.right.mas_equalTo(self.track);
        make.centerY.mas_equalTo(self.track);
        make.size.mas_equalTo(self.thumbSize);
    }];
    
    self.track.layer.cornerRadius = MIN(self.track.frame.size.height, self.track.frame.size.width)/2;
    [self addSubview:self.track];
    
    self.switchThumb = [[UIButton alloc] initWithFrame:thumbFrame];
    [self.switchThumb setTitleColor:UIColor.whiteColor forState:UIControlStateNormal];
    self.switchThumb.backgroundColor = [UIColor whiteColor];
    self.switchThumb.layer.cornerRadius = self.switchThumb.frame.size.height/2;
    self.switchThumb.layer.shadowOpacity = 0.5;
    self.switchThumb.layer.shadowOffset = CGSizeMake(0.0, 1.0);
    self.switchThumb.layer.shadowColor = [UIColor blackColor].CGColor;
    self.switchThumb.layer.shadowRadius = 2.0f;

    // Add events for user action
    [self.switchThumb addTarget:self action:@selector(onTouchDown:withEvent:) forControlEvents:UIControlEventTouchDown];
    [self.switchThumb addTarget:self action:@selector(onTouchUpOutsideOrCanceled:withEvent:) forControlEvents:UIControlEventTouchUpOutside];
    [self.switchThumb addTarget:self action:@selector(switchThumbTapped:) forControlEvents:UIControlEventTouchUpInside];
    [self.switchThumb addTarget:self action:@selector(onTouchDragInside:withEvent:) forControlEvents:UIControlEventTouchDragInside];
    [self.switchThumb addTarget:self action:@selector(onTouchUpOutsideOrCanceled:withEvent:) forControlEvents:UIControlEventTouchCancel];
    
    
    [self addSubview:self.switchThumb];
    
    thumbOnPosition = self.frame.size.width - self.switchThumb.frame.size.width;
    thumbOffPosition = self.switchThumb.frame.origin.x;
    
    // Set thumb's initial position from state property
    switch (state) {
        case RQSwitchStateOn:
            self.isOn = YES;
            self.switchThumb.backgroundColor = self.thumbOnTintColor;
            CGRect thumbFrame = self.switchThumb.frame;
            thumbFrame.origin.x = thumbOnPosition;
            self.switchThumb.frame = thumbFrame;
            break;
            
        case RQSwitchStateOff:
            self.isOn = NO;
            self.switchThumb.backgroundColor = self.thumbOffTintColor;
            break;
            
        default:
            self.isOn = NO;
            self.switchThumb.backgroundColor = self.thumbOffTintColor;
            break;
    }
    
    UITapGestureRecognizer *singleTap =
    [[UITapGestureRecognizer alloc] initWithTarget:self
                                            action:@selector(switchAreaTapped:)];
    [self addGestureRecognizer:singleTap];
    self.isOn = NO;
    [self.switchThumb setTitleNormal:@"科一"];
    
    return self;
}

- (id)initWithSize:(RQSwitchSize)size style:(RQSwitchStyle)style state:(RQSwitchState)state {
    switch (style) {
        case RQSwitchStyleLight:
            self.thumbOnTintColor  = [UIColor colorWithRed:0./255. green:134./255. blue:117./255. alpha:1.0];
            self.thumbOffTintColor = [UIColor colorWithRed:237./255. green:237./255. blue:237./255. alpha:1.0];
            self.trackOnTintColor = [UIColor colorWithRed:90./255. green:178./255. blue:169./255. alpha:1.0];
            self.trackOffTintColor = [UIColor colorWithRed:129./255. green:129./255. blue:129./255. alpha:1.0];
            self.thumbDisabledTintColor = [UIColor colorWithRed:175./255. green:175./255. blue:175./255. alpha:1.0];
            self.trackDisabledTintColor = [UIColor colorWithRed:203./255. green:203./255. blue:203./255. alpha:1.0];
            self.rippleFillColor = [UIColor grayColor];
            break;
            
        case RQSwitchStyleDark:
            self.thumbOnTintColor  = [UIColor colorWithRed:109./255. green:194./255. blue:184./255. alpha:1.0];
            self.thumbOffTintColor = [UIColor colorWithRed:175./255. green:175./255. blue:175./255. alpha:1.0];
            self.trackOnTintColor = [UIColor colorWithRed:72./255. green:109./255. blue:105./255. alpha:1.0];
            self.trackOffTintColor = [UIColor colorWithRed:94./255. green:94./255. blue:94./255. alpha:1.0];
            self.thumbDisabledTintColor = [UIColor colorWithRed:50./255. green:51./255. blue:50./255. alpha:1.0];
            self.trackDisabledTintColor = [UIColor colorWithRed:56./255. green:56./255. blue:56./255. alpha:1.0];
            self.rippleFillColor = [UIColor grayColor];
            break;
            
        case RQSwitchStyleSubject:
            self.thumbOnTintColor  = RQColorFromHexString(@"#498EF5");
            self.thumbOffTintColor = RQColorFromHexString(@"#498EF5");
            self.trackOnTintColor = UIColor.whiteColor;
            self.trackOffTintColor = UIColor.whiteColor;
            self.thumbDisabledTintColor = RQColorFromHexString(@"#498EF5");
            self.trackDisabledTintColor = UIColor.whiteColor;
            self.rippleFillColor = [UIColor blueColor];
            break;
            
            
        default:
            self.thumbOnTintColor  = [UIColor colorWithRed:52./255. green:109./255. blue:241./255. alpha:1.0];
            self.thumbOffTintColor = [UIColor colorWithRed:249./255. green:249./255. blue:249./255. alpha:1.0];
            self.trackOnTintColor = [UIColor colorWithRed:143./255. green:179./255. blue:247./255. alpha:1.0];
            self.trackOffTintColor = [UIColor colorWithRed:193./255. green:193./255. blue:193./255. alpha:1.0];
            self.thumbDisabledTintColor = [UIColor colorWithRed:174./255. green:174./255. blue:174./255. alpha:1.0];
            self.trackDisabledTintColor = [UIColor colorWithRed:203./255. green:203./255. blue:203./255. alpha:1.0];
            self.rippleFillColor = [UIColor blueColor];
            break;
    }
    self = [self initWithSize:size state:state];
    return self;
}

// When addSubview is called
- (void)willMoveToSuperview:(UIView *)newSuperview {
    [super willMoveToSuperview:newSuperview];
    
    // Set colors for proper positions
    if(self.isOn == YES) {
        self.switchThumb.backgroundColor = self.thumbOnTintColor;
        self.track.backgroundColor = self.trackOnTintColor;
    } else {
        self.switchThumb.backgroundColor = self.thumbOffTintColor;
        self.track.backgroundColor = self.trackOffTintColor;
        // set initial position
        [self changeThumbStateOFFwithoutAnimation];
    }
    
    if (self.isEnabled == NO) {
        self.switchThumb.backgroundColor = self.thumbDisabledTintColor;
        self.track.backgroundColor = self.trackDisabledTintColor;
    }
    
    // Set bounce value, 3.0 if enabled and none for disabled
    if (self.isBounceEnabled == YES) {
        bounceOffset = 3.0f;
    } else {
        bounceOffset = 0.0f;
    }
}

// Just returns current switch state,
- (BOOL)getSwitchState {
    return self.isOn;
}

// Change switch state if necessary, with the animated option parameter
- (void)setOn:(BOOL)on animated:(BOOL)animated {
    if (on == YES) {
        if (animated == YES) {
            // set on with animation
            [self changeThumbStateONwithAnimation];
        } else {
            // set on without animation
            [self changeThumbStateONwithoutAnimation];
        }
    } else {
        if (animated == YES) {
            // set off with animation
            [self changeThumbStateOFFwithAnimation];
        } else {
            // set off without animation
            [self changeThumbStateOFFwithoutAnimation];
        }
    }
}

// Override setEnabled: function for changing color to the correct style
- (void)setEnabled:(BOOL)enabled {
    [super setEnabled:enabled];
    
    // Animation for better transfer, better UX
    [UIView animateWithDuration:0.1 animations:^{
        if (enabled == YES) {
            if (self.isOn == YES) {
                self.switchThumb.backgroundColor = self.thumbOnTintColor;
                self.track.backgroundColor = self.trackOnTintColor;
            } else {
                self.switchThumb.backgroundColor = self.thumbOffTintColor;
                self.track.backgroundColor = self.trackOffTintColor;
            }
            self.isEnabled = YES;
        } else {
            // if disabled
            self.switchThumb.backgroundColor = self.thumbDisabledTintColor;
            self.track.backgroundColor = self.trackDisabledTintColor;
            self.isEnabled = NO;
        }
    }];
}

- (void)setTrackStr:(NSString *)trackStr {
    _trackStr = trackStr;
}

- (void)setThumbStr:(NSString *)thumbStr {
    _thumbStr = thumbStr;
    [self.switchThumb setTitleNormal:thumbStr];
}

//The event handling method
- (void)switchAreaTapped:(UITapGestureRecognizer *)recognizer {
    // Delegate method
    if ([self.delegate respondsToSelector:@selector(switchStateChanged:)]) {
        if (self.isOn == YES) {
            [self.delegate switchStateChanged:RQSwitchStateOff];
        } else{
            [self.delegate switchStateChanged:RQSwitchStateOn];
        }
    }
    
    [self changeThumbState];
}

- (void)changeThumbState {
    // NSLog(@"thumb origin pos: %@", NSStringFromCGRect(self.switchThumb.frame));
    if (self.isOn == YES) {
        [self.switchThumb setTitleNormal:@"科一"];
        [self changeThumbStateOFFwithAnimation];
    } else {
        [self.switchThumb setTitleNormal:@"科四"];
        [self changeThumbStateONwithAnimation];
    }
    
    if (self.isRippleEnabled == YES) {
        [self animateRippleEffect];
    }
}

- (void)changeThumbStateONwithAnimation {
    // switch movement animation
    [UIView animateWithDuration:0.15f
                          delay:0.05f
                        options:UIViewAnimationOptionCurveEaseInOut
                     animations:^{
        CGRect thumbFrame = self.switchThumb.frame;
        thumbFrame.origin.x = thumbOnPosition+bounceOffset;
        self.switchThumb.frame = thumbFrame;
        if (self.isEnabled == YES) {
            self.switchThumb.backgroundColor = self.thumbOnTintColor;
            self.track.backgroundColor = self.trackOnTintColor;
        } else {
            self.switchThumb.backgroundColor = self.thumbDisabledTintColor;
            self.track.backgroundColor = self.trackDisabledTintColor;
        }
        self.userInteractionEnabled = NO;
        self.trackLeftLabel.alpha = 1;
        self.trackRightLabel.alpha = 0;
    } completion:^(BOOL finished) {
        // change state to ON
        if (self.isOn == NO) {
            self.isOn = YES; // Expressly put this code here to change surely and send action correctly
            [self sendActionsForControlEvents:UIControlEventValueChanged];
        }
        self.isOn = YES;
        // NSLog(@"now isOn: %d", self.isOn);
        // NSLog(@"thumb end pos: %@", NSStringFromCGRect(self.switchThumb.frame));
        // Bouncing effect: Move thumb a bit, for better UX
        [UIView animateWithDuration:0.15f
                         animations:^{
            // Bounce to the position
            CGRect thumbFrame = self.switchThumb.frame;
            thumbFrame.origin.x = thumbOnPosition;
            self.switchThumb.frame = thumbFrame;
        } completion:^(BOOL finished){
            self.userInteractionEnabled = YES;
        }];
    }];
}

- (void)changeThumbStateOFFwithAnimation {
    // switch movement animation
    [UIView animateWithDuration:0.15f
                          delay:0.05f
                        options:UIViewAnimationOptionCurveEaseInOut
                     animations:^{
        CGRect thumbFrame = self.switchThumb.frame;
        thumbFrame.origin.x = thumbOffPosition-bounceOffset;
        self.switchThumb.frame = thumbFrame;
        if (self.isEnabled == YES) {
            self.switchThumb.backgroundColor = self.thumbOffTintColor;
            self.track.backgroundColor = self.trackOffTintColor;
        }
        else {
            self.switchThumb.backgroundColor = self.thumbDisabledTintColor;
            self.track.backgroundColor = self.trackDisabledTintColor;
        }
        self.userInteractionEnabled = NO;
        self.trackLeftLabel.alpha = 0;
        self.trackRightLabel.alpha = 1;
    } completion:^(BOOL finished) {
        // change state to OFF
        if (self.isOn == YES) {
            self.isOn = NO; // Expressly put this code here to change surely and send action correctly
            [self sendActionsForControlEvents:UIControlEventValueChanged];
        }
        self.isOn = NO;
        // NSLog(@"now isOn: %d", self.isOn);
        // NSLog(@"thumb end pos: %@", NSStringFromCGRect(self.switchThumb.frame));
        // Bouncing effect: Move thumb a bit, for better UX
        [UIView animateWithDuration:0.15f
                         animations:^ {
            // Bounce to the position
            CGRect thumbFrame = self.switchThumb.frame;
            thumbFrame.origin.x = thumbOffPosition;
            self.switchThumb.frame = thumbFrame;
        } completion:^(BOOL finished) {
            self.userInteractionEnabled = YES;
        }];
    }];
}

// Without animation
- (void)changeThumbStateONwithoutAnimation {
    CGRect thumbFrame = self.switchThumb.frame;
    thumbFrame.origin.x = thumbOnPosition;
    self.switchThumb.frame = thumbFrame;
    if (self.isEnabled == YES) {
        self.switchThumb.backgroundColor = self.thumbOnTintColor;
        self.track.backgroundColor = self.trackOnTintColor;
    } else {
        self.switchThumb.backgroundColor = self.thumbDisabledTintColor;
        self.track.backgroundColor = self.trackDisabledTintColor;
    }
    
    if (self.isOn == NO) {
        self.isOn = YES;
        [self sendActionsForControlEvents:UIControlEventValueChanged];
    }
    self.isOn = YES;
}

// Without animation
- (void)changeThumbStateOFFwithoutAnimation {
    CGRect thumbFrame = self.switchThumb.frame;
    thumbFrame.origin.x = thumbOffPosition;
    self.switchThumb.frame = thumbFrame;
    if (self.isEnabled == YES) {
        self.switchThumb.backgroundColor = self.thumbOffTintColor;
        self.track.backgroundColor = self.trackOffTintColor;
    } else {
        self.switchThumb.backgroundColor = self.thumbDisabledTintColor;
        self.track.backgroundColor = self.trackDisabledTintColor;
    }
    
    if (self.isOn == YES) {
        self.isOn = NO;
        [self sendActionsForControlEvents:UIControlEventValueChanged];
    }
    self.isOn = NO;
}

// Initialize and appear ripple effect
- (void)initializeRipple {
    // Ripple size is twice as large as switch thumb
    float rippleScale = 2;
    CGRect rippleFrame = CGRectZero;
    rippleFrame.origin.x = -self.switchThumb.frame.size.width/(rippleScale * 2);
    rippleFrame.origin.y = -self.switchThumb.frame.size.height/(rippleScale * 2);
    rippleFrame.size.height = self.switchThumb.frame.size.height * rippleScale;
    rippleFrame.size.width = rippleFrame.size.height;
    //  NSLog(@"");
    //  NSLog(@"thumb State: %d", self.isOn);
    //  NSLog(@"switchThumb pos: %@", NSStringFromCGRect(self.switchThumb.frame));
    
    UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:rippleFrame cornerRadius:self.switchThumb.layer.cornerRadius*2];
    
    // Set ripple layer attributes
    rippleLayer = [CAShapeLayer layer];
    rippleLayer.path = path.CGPath;
    rippleLayer.frame = rippleFrame;
    rippleLayer.opacity = 0.2;
    rippleLayer.strokeColor = [UIColor clearColor].CGColor;
    rippleLayer.fillColor = self.rippleFillColor.CGColor;
    rippleLayer.lineWidth = 0;
    //  NSLog(@"Ripple origin pos: %@", NSStringFromCGRect(circleShape.frame));
    [self.switchThumb.layer insertSublayer:rippleLayer below:self.switchThumb.layer];
    //    [self.layer insertSublayer:circleShape above:self.switchThumb.layer];
}


- (void)animateRippleEffect {
    // Create ripple layer
    if ( rippleLayer == nil) {
        [self initializeRipple];
    }
    
    // Animation begins from here
    rippleLayer.opacity = 0.0;
    [CATransaction begin];
    
    //remove layer after animation completed
    [CATransaction setCompletionBlock:^{
        [rippleLayer removeFromSuperlayer];
        rippleLayer = nil;
    }];
    
    // Scale ripple to the modelate size
    CABasicAnimation *scaleAnimation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
    scaleAnimation.fromValue = [NSNumber numberWithFloat:0.5];
    scaleAnimation.toValue = [NSNumber numberWithFloat:1.25];
    
    // Alpha animation for smooth disappearing
    CABasicAnimation *alphaAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];
    alphaAnimation.fromValue = @0.4;
    alphaAnimation.toValue = @0;
    
    // Do above animations at the same time with proper duration
    CAAnimationGroup *animation = [CAAnimationGroup animation];
    animation.animations = @[scaleAnimation, alphaAnimation];
    animation.duration = 0.4f;
    animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];
    [rippleLayer addAnimation:animation forKey:nil];
    
    [CATransaction commit];
    // End of animation, then remove ripple layer
    // NSLog(@"Ripple removed");
}

- (void)onTouchDown:(UIButton*)btn withEvent:(UIEvent*)event {
    // NSLog(@"touchDown called");
    if (self.isRippleEnabled == YES) {
        [self initializeRipple];
    }
    
    // Animate for appearing ripple circle when tap and hold the switch thumb
    [CATransaction begin];
    
    CABasicAnimation *scaleAnimation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
    scaleAnimation.fromValue = [NSNumber numberWithFloat:0.0];
    scaleAnimation.toValue = [NSNumber numberWithFloat:1.0];
    
    CABasicAnimation *alphaAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];
    alphaAnimation.fromValue = @0;
    alphaAnimation.toValue = @0.2;
    
    // Do above animations at the same time with proper duration
    CAAnimationGroup *animation = [CAAnimationGroup animation];
    animation.animations = @[scaleAnimation, alphaAnimation];
    animation.duration = 0.4f;
    animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];
    [rippleLayer addAnimation:animation forKey:nil];
    
    [CATransaction commit];
    //  NSLog(@"Ripple end pos: %@", NSStringFromCGRect(circleShape.frame));
}

// Change thumb state when touchUPInside action is detected
- (void)switchThumbTapped: (id)sender {
    // NSLog(@"touch up inside");
    // NSLog(@"track midPosX: %f", CGRectGetMidX(self.track.frame));
    // NSLog(@"%@", NSStringFromCGRect(self.switchThumb.frame));
    // Delegate method
    if ([self.delegate respondsToSelector:@selector(switchStateChanged:)]) {
        if (self.isOn == YES) {
            [self.delegate switchStateChanged:RQSwitchStateOff];
        } else {
            [self.delegate switchStateChanged:RQSwitchStateOn];
        }
    }
    
    [self changeThumbState];
}

// Change thumb state when touchUPOutside action is detected
- (void)onTouchUpOutsideOrCanceled:(UIButton*)btn withEvent:(UIEvent*)event {
    // NSLog(@"Touch released at ouside");
    UITouch *touch = [[event touchesForView:btn] anyObject];
    CGPoint prevPos = [touch previousLocationInView:btn];
    CGPoint pos = [touch locationInView:btn];
    float dX = pos.x-prevPos.x;
    
    //Get the new origin after this motion
    float newXOrigin = btn.frame.origin.x + dX;
    //NSLog(@"Released tap X pos: %f", newXOrigin);
    
    if (newXOrigin > (self.frame.size.width - self.switchThumb.frame.size.width)/2) {
        //NSLog(@"thumb pos should be set *ON*");
        [self changeThumbStateONwithAnimation];
    } else {
        //NSLog(@"thumb pos should be set *OFF*");
        [self changeThumbStateOFFwithAnimation];
    }
    
    if (self.isRippleEnabled == YES) {
        [self animateRippleEffect];
    }
}

// Drag the switch thumb
- (void)onTouchDragInside:(UIButton*)btn withEvent:(UIEvent*)event {
    //This code can go awry if there is more than one finger on the screen
    UITouch *touch = [[event touchesForView:btn] anyObject];
    CGPoint prevPos = [touch previousLocationInView:btn];
    CGPoint pos = [touch locationInView:btn];
    float dX = pos.x-prevPos.x;
    
    //Get the original position of the thumb
    CGRect thumbFrame = btn.frame;
    
    thumbFrame.origin.x += dX;
    //Make sure it's within two bounds
    thumbFrame.origin.x = MIN(thumbFrame.origin.x,thumbOnPosition);
    thumbFrame.origin.x = MAX(thumbFrame.origin.x,thumbOffPosition);
    
    //Set the thumb's new frame if need to
    if(thumbFrame.origin.x != btn.frame.origin.x) {
        btn.frame = thumbFrame;
    }
}



#pragma mark - LazyLoad
- (UIColor *)thumbOnTintColor {
    if (!_thumbOnTintColor) {
        _thumbOnTintColor = [UIColor colorWithRed:52./255. green:109./255. blue:241./255. alpha:1.0];
    }
    return _thumbOnTintColor;
}

- (UIColor *)thumbOffTintColor {
    if (!_thumbOffTintColor) {
        _thumbOffTintColor = [UIColor colorWithRed:249./255. green:249./255. blue:249./255. alpha:1.0];
    }
    return _thumbOffTintColor;
}

- (UIColor *)trackOnTintColor {
    if (!_trackOnTintColor) {
        _trackOnTintColor = [UIColor colorWithRed:143./255. green:179./255. blue:247./255. alpha:1.0];
    }
    return _trackOnTintColor;
}

- (UIColor *)trackOffTintColor {
    if (!_trackOffTintColor) {
        _trackOffTintColor = [UIColor colorWithRed:193./255. green:193./255. blue:193./255. alpha:1.0];
    }
    return _trackOffTintColor;
}

- (UIColor *)thumbDisabledTintColor {
    if (!_thumbDisabledTintColor) {
        _thumbDisabledTintColor = [UIColor colorWithRed:174./255. green:174./255. blue:174./255. alpha:1.0];
    }
    return _thumbDisabledTintColor;
}

- (UIColor *)trackDisabledTintColor {
    if (!_trackDisabledTintColor) {
        _trackDisabledTintColor = [UIColor colorWithRed:203./255. green:203./255. blue:203./255. alpha:1.0];
    }
    return _trackDisabledTintColor;
}

- (UIColor *)rippleFillColor {
    if (!_rippleFillColor) {
        _rippleFillColor = [UIColor blueColor];
    }
    return _rippleFillColor;
}

- (CGSize)trackSize {
    if (CGSizeEqualToSize(CGSizeZero, _trackSize)) {
        _trackSize = CGSizeMake(58, 25);
    }
    return _trackSize;
}

- (CGSize)thumbSize {
    if (CGSizeEqualToSize(CGSizeZero, _thumbSize)) {
        _thumbSize = CGSizeMake(58, 25);
    }
    return _thumbSize;
}

- (UILabel *)trackLeftLabel {
    if (!_trackLeftLabel) {
        _trackLeftLabel = [[UILabel alloc] init];
        _trackLeftLabel.textAlignment = NSTextAlignmentCenter;
        _trackLeftLabel.textColor = RQ_MAIN_TEXT_COLOR_3;
        _trackLeftLabel.font = RQRegularFont_15;
        _trackLeftLabel.text = @"科一";
    }
    return _trackLeftLabel;;
}

- (UILabel *)trackRightLabel {
    if (!_trackRightLabel) {
        _trackRightLabel = [[UILabel alloc] init];
        _trackRightLabel.textAlignment = NSTextAlignmentCenter;
        _trackRightLabel.textColor = RQ_MAIN_TEXT_COLOR_3;
        _trackRightLabel.font = RQRegularFont_15;
        _trackRightLabel.text = @"科四";
    }
    return _trackRightLabel;;
}



@end